Tom Thum and Matthew Broadhurst: What happens in your throat when you beatbox?

Viral beatboxer Tom Thum has an orchestra in his mouth, but how does he make all those sounds? Get an up-close-and-personal look as laryngeal surgeon Matthew Broadhurst sticks a camera down Thum's throat while he creates a mind-boggling array of noises. This hilarious, somewhat stomach-churning talk and performance is not for the squeamish! (Contains graphic medical imagery)